Season 4, Episode 14 The Blue Butterfly
First Aired: February 6, 2012
Castle and Beckett revisit a private eye's 1947 homicide after realizing it's connected to a present-day murder they're investigating.
Cast & Details See all »
- Premiered: March 9, 2009
- Rating: TV-PG
- Premise: A murder-mystery writer and a homicide detective team up to solve unusual crimes in New York City, and their professional relationship soon crosses the line into romance. (more)